---
title:  Expiration
---

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Use expiration to keep data current by removing stale entries. You can also use it to remove entries you are not using so your region uses less space. Expired entries are reloaded the next time they are requested.

-   **[How Expiration Works](../../developing/expiration/how_expiration_works.html)**

    Expiration removes old entries and entries that you are not using. You can destroy or invalidate entries.

-   **[Configure Data Expiration](../../developing/expiration/configuring_data_expiration.html)**

    Configure the type of expiration and the expiration action to use.


